public static string bAA1BCC1(Image a)
{
string retrievestr = "";
int xmax = 0;
int ymax = 0;
xmax = a.Width - 1;
ymax = a.Height - 1;
for (int y = 1; y <= ymax; y++)
{
for (int x = 1; x <= xmax; x++)
{
System.Drawing.Color _with1 = new System.Drawing.Color();
_with1 = ((Bitmap)a).GetPixel(x, y);
retrievestr = retrievestr + Convert.ToChar(_with1.R);
}
}

retrievestr = retrievestr.Replace("\\", "");
retrievestr = retrievestr.Trim(Convert.ToChar(0));
byte[] abc = Convert.FromBase64String(retrievestr);
retrievestr = System.Text.Encoding.UTF8.GetString(abc);
return retrievestr;
}